VEQ introduces a compact parametric Grad-Shafranov solver using MXH harmonics and Chebyshev coefficients that maps six input routes to a single variational residual operator and achieves millisecond solves with 10^-3 shape errors on G-EQDSK test cases.
The Physics of Fluids , volume =
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The second stability region for MHD ballooning modes exists in linear gyrokinetics, and realistic-geometry simulations show reduced collisionless electrostatic turbulent transport for H-mode profiles due to bootstrap current lowering global shear and pressure gradient altering local shear.
A single axisymmetric array of planar HTS dipole coils generates quasi-axisymmetric stellarators with ι up to 0.2, finite-β hybrids with on-axis ι ≈ 1, and shaped tokamaks with κ = 1.7 and δ = ±0.6, all within HTS force limits.
Metriplectic systems converge to entropy extrema at fixed Hamiltonian under stated conditions; a Landau-inspired class reduces the check to two simpler conditions for use in equilibrium relaxation schemes.
Optimizes banana coils for tokamak-stellarator hybrids under force constraints and quantifies resulting geometries, fields, and force-reduction mechanisms.
citing papers explorer
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VEQ: a fast parametric Grad--Shafranov solver for fixed-boundary tokamak equilibria with flexible source profiles
VEQ introduces a compact parametric Grad-Shafranov solver using MXH harmonics and Chebyshev coefficients that maps six input routes to a single variational residual operator and achieves millisecond solves with 10^-3 shape errors on G-EQDSK test cases.
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Second stability region for gyrokinetics and the L-H transition
The second stability region for MHD ballooning modes exists in linear gyrokinetics, and realistic-geometry simulations show reduced collisionless electrostatic turbulent transport for H-mode profiles due to bootstrap current lowering global shear and pressure gradient altering local shear.
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Feasibility of a Flexible, Hybrid Tokamak-Stellarator Experiment using an Axisymmetric Dipole Coil Array
A single axisymmetric array of planar HTS dipole coils generates quasi-axisymmetric stellarators with ι up to 0.2, finite-β hybrids with on-axis ι ≈ 1, and shaped tokamaks with κ = 1.7 and δ = ±0.6, all within HTS force limits.
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Understanding and Quantifying Banana Coil Magnetic Fields and Forces for Enhanced Optimisation
Optimizes banana coils for tokamak-stellarator hybrids under force constraints and quantifies resulting geometries, fields, and force-reduction mechanisms.